1404424 has 32 divisors (see below), whose sum is σ = 3110400. Its totient is φ = 581760.

The previous prime is 1404419. The next prime is 1404427. The reversal of 1404424 is 4244041.

It is not an unprimeable number, because it can be changed into a prime (1404427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332 + ... + 2140.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

2^1404424 is an apocalyptic number.

1404424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1404424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555200).

1404424 is an abundant number, since it is smaller than the sum of its proper divisors (1705976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1404424 is a wasteful number, since it uses less digits than its factorization.

1404424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1404424 is about 1185.0839632701. The cubic root of 1404424 is about 111.9866055410.

Adding to 1404424 its reverse (4244041), we get a palindrome (5648465).

The spelling of 1404424 in words is "one million, four hundred four thousand, four hundred twenty-four".